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Working principle of turbojet engine

2023-10-12 14:53:54 Latest updates 1381

The turbojet engine is a technological marvel that has transformed the aviation industry. It is specially designed to propel aircraft by converting air into thrust. This propulsion system has revolutionized the way we travel and has made air travel faster, more efficient, and safer. To understand the working principle of a turbojet engine, we need to delve into the intricacies of its components and their functions.

Working principle of turbojet engine

At the core of a turbojet engine is the compressor. The compressor consists of a series of rotating blades that compress incoming air. The main purpose of the compressor is to increase the pressure of the air entering the engine. As the air passes through each stage of compressors, the pressure is gradually increased, resulting in a highly pressurized air.

Once the air is compressed, it enters the combustion chamber. The combustion chamber is where the magic happens. Fuel is injected into the chamber and ignited, causing a rapid combustion that releases a tremendous amount of energy. This energy creates high-pressure, high-temperature gases, which expand rapidly.

The expanding gases then flow through the turbine, another crucial component of the turbojet engine. The turbine is made up of a series of stages, each consisting of stationary and rotating blades. As the high-pressure gases flow through the turbine, they transfer some of their energy to the rotating blades. This energy transfer causes the turbine to rotate, which in turn drives the compressor through a shaft. This is a key point to note – the energy that drives the compressor comes from the expanding gases themselves, achieving a self-sustaining cycle.

Finally, after passing through the turbine, the high-velocity exhaust gases exit the engine at the rear, creating a powerful thrust. This thrust is responsible for propelling the aircraft forward. The exhaust gases are expelled at such high speeds that they create a forward force on the aircraft, according to Newton's third law, which states that every action has an equal and opposite reaction.

In summary, the working principle of a turbojet engine can be simplified into three main stages: compression, combustion, and expansion. The compressor increases the pressure of the incoming air, the combustion chamber ignites fuel to create high-pressure gases, and the expanding gases pass through the turbine to extract energy to drive the compressor. Finally, the high-velocity exhaust gases generate thrust, propelling the aircraft forward.

The turbojet engine has truly revolutionized air travel and has played a vital role in shaping the modern world. Its working principle is a testament to the marvels of engineering and the incredible power of harnessing and manipulating air to achieve incredible speeds and efficiency.

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